In a pyrotechnic production plant, a fire was ignited from residues of a pyrotechnic composition during the renovation of a workstation performed by a subcontracted firm. In an abandoned room that had previously been used for a praline-coating operation (covering the paste with a black powder), two workers sliced through threaded rodss with a plough disc just above the product sieving screens that had been cleaned but not yet decontaminated and still contained traces of the composition, which then ignited upon contact with the burst of sparks. The two workers sustained 1st and 2nd degree burns to their hands and face; both required hospitalisation. An insufficient cleaning within the works zone was responsible for this accident. The Classified Facilities Inspectorate filed a report of these various findings.

The operator then focused on evacuating all pyrotechnic products from the premises prior to any modifications, in addition to treating the polluted screens like a pyrotechnic object and improving the management of all maintenance operations performed by subcontractors.